Target 1. Could be used in everyday life. And space-saving convenience Such as placing the betel alkaloid . 2 applied to the benefit of all sides. Most cost-
1. target can be used on a daily basis, and save space, comfortable place where to place the pool spotted 2. adopt a cause beneficial aspects. The most cost-effective
target 1. Can be used in everyday life such as the space-saving and easy to do at the beginning of the poll spotted 2. used to get the most benefit the surrounding